fix dep and add comment

Author: mydea

packages/replay-worker/package.json

@@ -46,10 +46,10 @@
   },
   "homepage": "https://docs.sentry.io/platforms/javascript/session-replay/",
   "devDependencies": {
+    "@rollup/plugin-commonjs": "^21.0.1",
     "@types/pako": "^2.0.0"
   },
   "dependencies": {
-    "@rollup/plugin-commonjs": "25.0.7",
     "pako": "2.1.0"
   },
   "engines": {

packages/replay-worker/src/Compressor.ts

@@ -2,6 +2,11 @@ import type * as PakoTypes from 'pako';
 // @ts-expect-error no types here
 import * as pako from 'pako/lib/deflate.js';
 
+// NOTE: We have to do this weird workaround because by default,
+// pako does not treeshake when importing from 'pako'.
+// In order to get proper tree shaking, we have to import from 'pako/lib/deflate.js',
+// Which is not great but works
+// types come from @types/pako, so we can safely use them by casting
 const Deflate = (pako as typeof PakoTypes).Deflate;
 const deflate = (pako as typeof PakoTypes).deflate;
 const constants = (pako as typeof PakoTypes).constants;

yarn.lock

@@ -4753,18 +4753,6 @@
     is-reference "1.2.1"
     magic-string "^0.27.0"
 
-"@rollup/plugin-commonjs@25.0.7":
-  version "25.0.7"
-  resolved "https://registry.yarnpkg.com/@rollup/plugin-commonjs/-/plugin-commonjs-25.0.7.tgz#145cec7589ad952171aeb6a585bbeabd0fd3b4cf"
-  integrity sha512-nEvcR+LRjEjsaSsc4x3XZfCCvZIaSMenZu/OiwOKGN2UhQpAYI7ru7czFvyWbErlpoGjnSX3D5Ch5FcMA3kRWQ==
-  dependencies:
-    "@rollup/pluginutils" "^5.0.1"
-    commondir "^1.0.1"
-    estree-walker "^2.0.2"
-    glob "^8.0.3"
-    is-reference "1.2.1"
-    magic-string "^0.30.3"
-
 "@rollup/plugin-commonjs@^15.0.0":
   version "15.1.0"
   resolved "https://registry.yarnpkg.com/@rollup/plugin-commonjs/-/plugin-commonjs-15.1.0.tgz#1e7d076c4f1b2abf7e65248570e555defc37c238"